StepAudio 3 API docs detail full model lineup from TTS to music generation
StepFun_ai · x · 2026-09-16
StepFun published API access and full documentation for the StepAudio 3 family, detailing stepaudio-3-tts, asr-max, realtime-preview (full-duplex with adaptive reasoning), gen-preview (unified speech/SFX/ambience/music generation), and music-preview, plus the earlier stepaudio-2.5 lineup. TTS/ASR support Chinese, English, Japanese, Korean, French and Spanish; realtime currently supports Chinese and English.
Related event: StepFun Releases Five StepAudio 3 Models Covering Full Audio AI Stack(6 posts)→
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